MAGNETIC LEVITATION MAGNETIC LEVITATION (MagLev)(MagLev)

By Nazia Banoo Siddiqui By Nazia Banoo Siddiqui (EEE,6(EEE,6thth sem) sem)

What is MagLev?What is MagLev?

MagLev Technology;MagLev Technology;

-levitates objects in air-levitates objects in air

- electromagnetic propulsion- electromagnetic propulsion

- caused by electro magnets - caused by electro magnets

Technology in MagLevTechnology in MagLev

1)ELECTROMAGNETIC SUSPENSION;1)ELECTROMAGNETIC SUSPENSION;

- uses attractive magnetic force of a - uses attractive magnetic force of a magnet.magnet.

2)ELECTRODYNAMIC SUSPENSION;2)ELECTRODYNAMIC SUSPENSION;

-uses repulsive force between 2 -uses repulsive force between 2 magnetic fieldsmagnetic fields

Basic Concepts Of MagLev are-Basic Concepts Of MagLev are-

- Halbach Array- Halbach Array

-Levitation Track-Levitation Track

-Propulsion system-Propulsion system

Halbach ArrayHalbach Array•grade 38, Neodymium-IronBoron (NdFeB).•Posses “ one-sided flux” structure

MagLev “Guideways” or TracksMagLev “Guideways” or Tracks

Track repels magnets on undercarriage of Track repels magnets on undercarriage of train, sending the train forward.train, sending the train forward.

Train levitates between 1 and 10 cm Train levitates between 1 and 10 cm above guideway.above guideway.

Levitation TrackLevitation Track

Using laminated copper sheetsUsing laminated copper sheets

PropulsionPropulsionA Linear Synchronous Motor (LSM) A Linear Synchronous Motor (LSM)

propels the train.propels the train. copper wire powered by 3ø ACcopper wire powered by 3ø AC

Inductrack TechnologyInductrack Technology

basic concepts - propel & levitate basic concepts - propel & levitate

Velocity of train vs. heightVelocity of train vs. height

Advantages of Inductrack system are;Advantages of Inductrack system are;

low weightlow weight

low power requirementslow power requirements

non adhesive drive systemnon adhesive drive system

Disadvantages are;Disadvantages are;

early development statusearly development status

lack of control over levitationlack of control over levitation

wind effectswind effects

Travel SpeedsTravel Speeds

At 300 kmphAt 300 kmph cheaper than flying!!!!cheaper than flying!!!!MaglevMaglev

MagLev vs. Conventional TrainsMagLev vs. Conventional Trains

MagLev TrainsMagLev Trains Conventional TrainsConventional Trains

No Friction = Less No Friction = Less MaintenanceMaintenance

Routine Maintenance Routine Maintenance

NeededNeeded

No Engine = No fuel No Engine = No fuel requiredrequired

Engine requires fossil Engine requires fossil fuelsfuels

Speeds in excess ofSpeeds in excess of

300 mph300 mph

Speeds up to 110 mphSpeeds up to 110 mph

Better for the EnvironmentBetter for the Environment

Less energy consumption because no rail-Less energy consumption because no rail-track frictiontrack friction

Requires no fossil fuelRequires no fossil fuel

MagLev guideways & trains take up less MagLev guideways & trains take up less space than conventional trainsspace than conventional trains

Less noise pollutionLess noise pollution

ObstaclesObstacles

Expensive guideway.Expensive guideway.

Existence of conventional high speed train.Existence of conventional high speed train.

Health concerns due to electromagnetic fields.Health concerns due to electromagnetic fields.

Lack of investmentLack of investment

MagLev ApplicationsMagLev Applications

Disneyland’s California Adventure CoasterDisneyland’s California Adventure Coaster

& roller coaster uses MagLev technology to & roller coaster uses MagLev technology to propel car from 0-55 mph in less than 5 propel car from 0-55 mph in less than 5 seconds!seconds!

Disneyland® - California Screamin' Disneyland® - California Screamin'

Other applications are-Other applications are-

U.S. military is looking into using MagLevU.S. military is looking into using MagLevPossible uses could include:Possible uses could include:

Rocket launchingRocket launchingAircraft carrier launching padAircraft carrier launching padSpace craft launchingSpace craft launching

Present ScenarioPresent Scenario

Commercially viableCommercially viable It will run for commercial serviceIt will run for commercial serviceAt present countries like germany, japan At present countries like germany, japan

& china have shown their interest.& china have shown their interest.Since 1990 maglev has gained status of Since 1990 maglev has gained status of

nationally funded project.nationally funded project.

ConclusionConclusion

Department of Energy, found that “maglev Department of Energy, found that “maglev technology” is a technically feasible technology” is a technically feasible transportation system.transportation system.

The Inductrack technology will require a The Inductrack technology will require a long and expensive development periodlong and expensive development period

ReferencesReferences [1] R. F. Post,The Inductrack; a simpler approach to magnetic [1] R. F. Post,The Inductrack; a simpler approach to magnetic

levitation.levitation. [2] Richard F., RYUTOV, Dmitri D. Lawrence Livermore National [2] Richard F., RYUTOV, Dmitri D. Lawrence Livermore National

Laboratory “THE INDUCTRACK APPROACH TO MAGNETIC Laboratory “THE INDUCTRACK APPROACH TO MAGNETIC LEVITATION SYSTEM.LEVITATION SYSTEM.

[3] Post, Richard F., Kratz, Robert, “Halbach Arrays for Maglev [3] Post, Richard F., Kratz, Robert, “Halbach Arrays for Maglev Applications,” Lawrence Livermore National Laboratory. September Applications,” Lawrence Livermore National Laboratory. September 1999.1999.

[4] Post, Richard F., “Inductrack Demonstration Model,” Report [4] Post, Richard F., “Inductrack Demonstration Model,” Report UCRL-ID-129664,February 3, 1998.UCRL-ID-129664,February 3, 1998.

[5] Dusty Funk & Kyle Getsla Project Advisor: Dr. Anakwa, May 12, [5] Dusty Funk & Kyle Getsla Project Advisor: Dr. Anakwa, May 12, 2006; MAGNETIC LEVITATION FINAL REPORT.2006; MAGNETIC LEVITATION FINAL REPORT.

??

THANK YOUTHANK YOU